Balanced lubricator.



S. E. BURCH BALANCED LUBRICATOR; APPUCATION :"ILED DEC.20. 1916.

Patentfi 00a 16, 1917.

2 SHEETS-SHEET I.

4446 ame/5 S. E. BURCH.

BALANCED LUBRICATOR.

APPLJCATLQN FILED nEc.20. I916.

l fi gfi a v Patented 00. 16, 1917.

2 SHEETS SHEET 2..

SAMUEL EDWARD BURCH, OF WELLWOOD, MANITOBA, CANADA.

BALANCED LUBRICATOR.

Specification of Letters Patent.

Patented OctJlfi, 1917.

Application'filed December 20, 1916. Serial No. 138,007.

To all whom it may concern:

Be it known that I, SAMUEL EDWARD BURCH, a citizen of the Dominion of Canada, residing at the village of Wellwood, in the Province of Manitoba, in the Dominion of Canada, have invented certain new and useful Improvements in Balanced Lubricators, of which the following is a specification.

My invention relates particularly to apparatus used in connection withsteam plants to lubricate the cylinder of the engine, and the object of the invention is to provide a device for the purpose stated in which as it were, the boiler pressure is balanced against itself and the power required to inject the oil into the steam pipe is therefore only that required to overcome the balance between two equal forces. A further object of the invention is to make the apparatus automatic in all its operations so that no attention will be required so long as the supply of oil lasts.

The means by which these and certain other objects of the invention which will develop as the description proceeds, are attained will be found fully set out in the following specification, then more particularly pointed out in the appended claims, reference also being had to the drawings forming part hereof, in which Figure 1 is a plan view of a preferred form of the apparatus employing a pair of cylinders.

Fig. 2 is a side elevation of the apparatus as in Fig. 1, a boiler being introduced to show its connection therewith.

Fig. 3 is a sectional view taken on the line 3 in Fig. 1.

Figs. 1 and 5 areface and edge views respectively of the oscillating member through which motion is imparted to the apparatus.

Figs. 6 and 7 are end and bottom views respectively of the valve shifting member.

Fig. 8 shows one of the adjustable dogs whichare secured to the valve shifting member.

Figs. 9 and 10 are end and plan views re-- spectively of the frame in which the valve shifting member is slidably supported.

Fig. 11 is a sectional view through the wheel and supporting member relating to one cylinder.

Fig. 12 shows a modification of the apparatus, in which only one cylinder is used.

Fig. 13 is the pawl by which this form of the apparatus is actuated.

Fig. 14: shows the means used to disengage the pawl and ratchet when the supply of oil rivetsl or any other suitable means. Pistons 5 and 6 are disposed in the respective cylinders, their rods 7 and 8 passing out through glands 9 adapted to receive some form of packing to render them oil tight. Circular members 10 are supported from the heads of the cylinders at a height approximating the depth thereof, by posts 11,'the members 10 being adapted to support on their upper sides the gear wheels 12 and 13, each of the members 10 being provided with a central opening 14 (Fig. 11) to receive revolubly therein the sleeve 15 on the wheel supportedthe'reon. The axial openings 16 through the wheels 12 and 13 are screw threaded as at 17 and the upper ends of the piston rods? and. 8 are threaded as at 18, to engage the threads in the wheels, thus the wheels 12 and 13 become revoluble nuts adaptedto raise or lower their respective pistons according to the direction in which they are turnedon the piston rods.

A shaft 19 crosses the faces of' wheels 12 and 13 and is carried in bearings '20 supported fromthe under sides of the members 10. Opposed worm gears 21 and 22 are carried on the shaft 19 in engagement with the teeth on the gears 12 and 13, so that ifthe shaft 19 is turned the gears 12 and 13 are revolved in'opposite directions.

- Approximately midway between the worm gears 21 and 22 a ratchet wheel 23 is secured on the shaft 19 and a vertical member 24: is

pivoted on the shaft adjacent the wheel, the

vertical member having at its upper end a double ended pawl 25 pivoted thereto in a manner allowing it to be rocked to bring either of its ends 26 or 27' into engagement with the teeth on the ratchet wheel.

The pawl is preferably shaped as shown, that is to say, having a considerable portion above its pivotal point 28 and ending in a diamond shaped point 29. A bracket memthe gearvalves 78 and 7 9 would be moved a quarter turn through their link connection with that member, thus closing the connection of the pipe 76 with the boiler by way of the pipe 7 5, and opening it to waste through the pipe 84: to drain the cylinder 1. The same movement closed the waste pipe 85 and opened the boiler connection to the cylinder 2 through the pipe 77. Thus the boiler pressure (water) is exerted under the-rising piston 6, and the oil above the piston is fed through the pipes 64 and 66 into the steam pipe 67 from which it passes with the steam into the engine. The cylinder 1 is free from boiler pressure as mentioned and as the piston 5 therein descends the oil feeds in through the pipe 71 past the check valve 7 3 into the pipe 63 and thence into the cylinder, until the reverse operation takes place. Thus it will be seen that the operations alternate in the cylinders so long as the apparatus is in operation and the supply of oil lasts.

Should the oil feed too rapidly the pivotal connection between the reciprocating mem ber 41 and the oscillating member 24 is raised to reduce the length of the oscillation, thus reducing the movement of the wheel 23 and the amount of oil fed to the engine. When this adjustment is made it calls for a readjustment of the position of the dogs 51 and 52 on the member 4%, these being necessarily brought closer together in order that the slide of the member 44 may be the same length as before, this being necessary to bring about a complete quarter turn of the valves 78 and 7 9.

Thus it will be seen that the rising piston is supported by boiler pressure from below the water line in the boiler as it feeds the oil against the boiler pressure from above the water line, the pressure being thus balanced and the power required to overcome the balance merely nominal.

In Fig. 12 a modification of the apparatus is shown, in that it consists of but a single cylinder 1, and while the oil is automatically fed in by the pawl and ratchet 25 and 23, the other operations are performed by hand. In this form, when the piston rod 7 reaches its upward limit it operates the bell-crank lever 86 to depress the rearwardly extending arm 87 connected with the pawl 25, thus removing the pawl from contact with the teeth on the wheel 23 and stopping all movement of the apparatus aside from the oscillation of the .member 24. In this case the worm gear 21 means of the handle 90 which is secured to i the gear 12. The boiler pressure below is cut off and water drained from the cylinder by means of the valve 91 while the piston is being lowered, and the cylinder is filled with oil through the screw-topped funnel 92. In other respects the apparatus and its functions are the same as previously described.

Having thus fully described my said invention, What I claim is 1. An apparatus of the kind described comprising a boiler having a steam pipe, a cylinder having connection with an inlet pipe for lubricant and an outlet pipe for the same connected with the steam pipe, back pressure valves in the inlet and outlet pipes, a piston in the cylinder, suitable means to operate the piston to expel the lubricant, a connection between the boiler below the water line and the cylinder behind the piston and a cock to control the flow of water through the said connection.

2. An apparatus of the kind described comprising a boiler having a steam pipe, a pair of cylinders having at one end inlet pipes for a lubricant and outlet pipes for the same connected with the steam pipe, back pressure valves in the inlet and outlet pipes, pistons in the cylinders, means to operate the pistons in opposite directions to receive and expel the lubricant, water pipes connecting the boiler below the water line with the cylinders behind the pistons, cocks in the water pipes, and means to reverse the movements of the pistons and simultaneously operate the cooks in the water pipes to allow one cylinder to fill with water and to drain the other.

3. An apparatus of the kind described comprising a boiler having a steam pipe, a pair of cylinders vertically positioned and having at their upper ends inlet pipes for a lubricant and outlet pipes for the same connected with the steam pipe, back pressure valves in the inletand outlet pipes, water pipes at the lower ends of the cylinders connecting with the boiler below the water line, cocks in the water pipes, pistons in the cylinders, pawl and ratchet means to operate the pistons in opposite directions, and means operatively connected to automatically reverse the pistons at the limit of their movement and operate the cooks to allow water to enter the cylinder behind the ascending piston and to drain it from behind the descending one.

4. An apparatus of the kind described comprising a boiler having a steam pipe, a

pair of cylinders, inlet pipes for a, lubricant and outlet pipes for the same connecting the cylinders and the steam pipe, pistons in the cylinders oppositely operated to receive and expel the lubricant, Water pipes connecting the boiler below the Water line with the cylinders behind the pistons, and means in Copies of this patent may be obtained for meegeee the Water pipes automatically operated, to

cylinder and to close it with the receiving cylinder, ancl-clrain the latter.

In testimony whereof, I affix my signa-j ture. r. v H SAMUEL EDWVARD BURCH.

fivecen'ts each, by addressing the (iommis sioner of Patents; Washington, D. 0.

open boiler connection with the" expelling: 

